[tbb-bugs] #26146 [Applications/Tor Browser]: Setting `general.useragent.override` does not spoof the platform part anymore in ESR 60 which is confusing

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#26146: Setting `general.useragent.override` does not spoof the platform part
anymore in ESR 60 which is confusing
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 Reporter:  gk                        |          Owner:  tbb-team
     Type:  defect                    |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:  ff60-esr                  |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by cypherpunks):

 Replying to [comment:6 viktorj]:
 > Replying to [comment:5 sysrqb]:
 > > The platform/OS on which Tor Browser is running can be detected
 multiple ways, spoofing the user agent is simply a low-hanging fruit for
 obscuring it. The usefulness of this is debatable, but we should minimize
 the differences between platforms when it is possible.
 >
 > I understand. Ideally the user agent should be the same for all
 platforms, but I see that the platform can be identified at least via the
 fonts at the moment.
 Not everyone does OS detection through installed fonts though everyone
 collects user-agents. Also with JS disabled OS detection is MUCH harder.
 Giving away *free* entropy like that is intolerable.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26146#comment:7>
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